Marshall Class 5 "Z" Mod - Supreme

The ultimate Marshall Class 5 upgrade — a fire-breathing vintage Marshall at neighbor-friendly volume. Stock, the Class 5 can be too gainy, dark, muffled, and mushy. This Supreme kit does everything our standard “Z” Mod does, then adds a beefier output transformer to take the amp all the way to tonal bliss.

What you get

• Added clarity and the tone control revoiced to mid-to-late-'60s Marshall spec
• Sweet, crunchy Marshall mids
• More power-supply filtering to remove the low-end mush
• Cooler-running power tube for longer life
• Plus: an upgraded, beefier output transformer for fuller, bigger tone

Just want the core mod without the transformer? Get the standard “Z” Mod →

We're always sourcing the best-sounding parts, so your kit may look a little different from the photo — the electronic values are equivalent.